/*
    Copyright (C) 2014-2019 de4dot@gmail.com

    This file is part of dnSpy

    dnSpy is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    dnSpy is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with dnSpy.  If not, see <http://www.gnu.org/licenses/>.
*/

using System.Linq;
using dnSpy.Contracts.Decompiler;
using dnSpy.Contracts.Documents.TreeView;

namespace dnSpy.AsmEditor.Hex.Nodes {
	[ExportDocumentTreeNodeDataFinder]
	sealed class HexDocumentTreeNodeDataFinder : IDocumentTreeNodeDataFinder {
		public DocumentTreeNodeData? FindNode(IDocumentTreeView documentTreeView, object? @ref) => FindNode(documentTreeView, @ref as TokenReference);

		internal static MetadataTableRecordNode? FindNode(IDocumentTreeView documentTreeView, TokenReference? tokRef) {
			if (tokRef is null)
				return null;

			var modNode = documentTreeView.FindNode(tokRef.ModuleDef);
			if (modNode is null)
				return null;
			modNode.TreeNode.EnsureChildrenLoaded();
			var peNode = (PENode?)modNode.TreeNode.DataChildren.FirstOrDefault(a => a is PENode);
			return peNode?.FindTokenNode(tokRef.Token);
		}
	}
}